Machine for punching and forming inwardly-depressed orifices in tubes and pipes



Aug. 19, 1930. E. F ELERY MACHINE F R PUNCHI AND I DEPRESS D QRIFIG NG FORMING INWARD ES IN TUBES AND PIPES Shets-Sheet l Filed June 192 Aug. 19, 1930. E. F. DELERY 1,773,522

MACHINE FOR PUNCHING AND FORMING INWARDLY DEPRESSED ORIFICES IN TUBES AND PIPES Filed June 1925 4 Sheets-Sheet 2 is v Aug. 19, 1930. E; F. DELERY 1,773,522 MACHINE FOR PUNCHING AND FORMING INWARDLY DEPRESSED URIFICES IN TUBES AND PIPES Filed June 5. 1925 4 Sheefs-Sheet 5 "Aug. 1 9, 1930. E. F. DELERY 1,773,522

\ MACHINE FOR PUNCHING AND FORMING INWARDLY DEPRESSED ORIFICES IN TUBES AND PIPES Filed June 1925 4 Sheets-Sheet 4 Patented Aug. d

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cnasnn Br anne-Fenian DELE'BY, or new ,oBLE nsQnouisrArrA'; nnna' npsnLinannLEn TUTRIX AnM-mrs'rnnms TI-IE nsrra'rn or SAID nusnnn FRANK nnnnny pnriaonrnn non 'ruivonine is]: roe-mm inwannr v-nnrnnssnn onrrionsan roiz is Application filedlunefi, 1925. 'ser ai nmsaesa This invention relates :to machines de-. signed to'shea r and inwardly depress orifices in tubes, and more particularly to machines intend edto shear-and inwardly depress impact orifices in the walls of tubes aiterthe' manner shown inmyL'applic'atiOn #630,413 of April 8, 1923', and shown in Figures 21,122.

The principal'robject oi thisinvention'is a machine with which inwardly depressed orifices in parallel rows and in series uniformly spaced can be forined rapidly accurately and also cronsists in the several cornbinations an'dparts defined in the appended claims, particularly setxfiorth' in the ensuing description and illustrated in the accompanying drawings.

In the drawings, wherein like reference characters indicate like parts throughout the several 'V-1"WS,-

Figurel is an isometric view of the interior die showing the hubs39, 41, the inter changeable annular die body 1 with one-solid die B -and two interchangeableinserted dies .43 and three release grooves 42c=and the'hub Figure 2 is a part section- (enlarged view) I of t-h-e head block 2 showing the punch 3, the

' ure 2.

plunger 28, cap 56, liners 30;, springs 29, filler ring 25, tubelSs-upporting pin 32 andxcl'earancespace35. JFigure 3 is taken at right angles to Fig- Figure l is anendview of a spacer. a Figure is an elevation of aspacer.

Figurefi is'a sectional elevation otthe ma-' chine on line -'6'6 o'f Fig. 7 withapartly' punched tube in place. f

Figure 7 is a plan of Figure "6. I

Figure 8 is aside elevation or Figural. Figure 9 isasec'tion on line e-s of Fig. 6; showing the carriage Q Figure 10 is a cross fsectionlonline 10%10; of Fig ti sliowing the heelfblock 'l', I 1 s Figure 11' is afplan view of the machine bed, showing; the rails, pivot pin, spacers, spacerbearingsand handles and pull eyelet andfastening bolts.

Figure 12 is a top view of the head block section of'the head block on:

line 13-13 of Fig. 7,-

block.

Figure 21545 View 0f the expander :col'lar'.

Figure 16 1s afrorit elevation of the head block wi clip lug withbalance'wei 'ght, and holes for adjustment bolt. v

Figures 17, 18, filler ring 25. i Figures 21'and punching, though theright is reserved to make-r ally other form of punching desired as long asit is depressed within'the tube.

In the drawings 1 .r-epresentsan interior ,Clle body, usually annular and vmounted on a suitable hub or mandrel 39 and positioned thereto by 1 suitable, means such as keys,

mounting dies 4L3 and 43, preferably detachableinterchangeable and adjustable as at43 'withlin'ers 4; 5'Yand' having clearance along the longitudinal axisoi the die inthe 'direc- 'tion in. which; the tube is withdrawn, alsoclearance slots 42 of a length slightly less is, 20 G110 iews of the Figure 14 is a: bottom view of the head 7 v bllOlll] punches or levers, but showingspacer 8 and its'operatrng handle, stop lugs,

22 show the usual type of thanlthe maximumfpitch'distancebetween 1 I the faces 4610f the dies, of a width equal to:

the punches, and; a circumferential pitch equal to that ofthe'dies. The usual form of die willbe as, shown in the drawings, 7 constant section lengthwise: the longitudinal axis ofthe tube and terminating in'a shearing face 46 corresponding to the shearingface a 85" 57- of the punch 3.

r .The annular body 19 thrusts against a shoulder-oi the enlargement 41 of the hub 39,.- which itself registers in an' (usually, hollow) "3 extension shaft 10 and fastens thereto by. a; pin 47, or ,other' usualunechanical device.

This f-extensionshaft isthrea-ded on its ex:

jamb nut 21 reacts against an adjustable but normally rigid heel block 7 and can befp'revented'frorn; turning with reference to 7 by a set screw 60. "The extension shaft 10 further extends through a clamp 22jwhich can n-ishedby the bearingzii set in t terior surface andgby means of a 'nutf20'and 7 views are shown in Figures 6, 7,

manta,

' The head bloclr 2 isdiametrically split in two parts 23 and 24. 23 clamping to 24 by bolts 76 has lugs .(fulcrumlugs) 26 with boltholese l for the depressing levers 27,

also guide openings 7 4 for the punch plungers' 28 and clearance openings 31. Vhen the outside diameter of the tube is less than the maximum diameter of the circular space Within 2, then a filler ring, also horizontally splitisused; This has openings corresponding to 74 in 23.

These openings 74 are so placed and inclined that they register over the die blocks Of l The-plungers 28 are so arranged that they cannot revolve in the guide openings 74 but i can travel up and down. As shown in the various figures they are returned to their normal positions by the springs 29 and limited in their depressed travel by liners 30. The punch 3 will usually be formed about as shown: in Figures 1 and 2 (though'it is not limited tothat form) with a shearing face 57 I corresponding to the section of the dies 45,

after correction for the metal thickness, the forming partof-the punch corresponding to a i shape somewhat like 58. This punch shoulders against the bottom end of28, a projection 84 is recessed in 28 and fastened in position by a pin 32 extending through 28 and forming a limiting pin 32 in the upward travel of 28, a recess 53 serves to keep it' in position.

. 24serves as the other half of the head block, and is provided with two adj ustment lugs with holes 52 for the adjustment bolt 14, a

, guideslot 35 for the pivot 15,two runway slots 36xand an opening for the shaft of the spacer 8", and lugs 81 and 82 for 8 The expansion collar. fifurnishes a small though important part of this machine. It is shown in Figures 6, 7, 8, and 15 in which 5, a split collar has an interior shoulder 61 of slightly less diameter'than the internal diameter of the tube, an expander bolt 63 for expanding 61 within the tube,

serving toprevent 5 and the tube from turni'ng'with respect to 10 and 6.

fThiscollar surrounds 10 and travels free 0 The travelling carriage 6 as shown in Fig ures 7 and 9 spans from rails 33 resting in grooves in 6. As shown in Figure 9 it is arched to travel over 10, trip lugs 17 extend to either side to engage the teeth 67 of either 1 8 fori8 'if these are in a position to interfere.

guide the lever 27 and a semicircular groove 64 fit-- ting over a'=sem1c1rcular collar 65 on 6, and

cord holes 7 9 are shown through which the cords 36 pass which draw the carriage forward. A pushing flange 67 is shown (Fig.

6) and a flange 68 with a draw bolt 68E is also shown. on the forward end of the carriage 6 will be observed a half collar over which 64 slips, at 65 Fig. 6. As shown inv 8 and 9, 64; comes against a flange on the car-' riage 6 thus preventing rotation of 5.

f The spacers are shown in Figures 4 and 5 as shafts with equally spaced teeth 67, set at such an angle that the trip lugs in going fromone lug to the next cannot pass and thus jump a lug. Bearings 70 are provided and the end of the shaft is squared to take a handle 16.

The shafts of the spacers 8", 8 8, are mounted in bearings on the Webs 71 of the bed 9. As shown in Figure 16 a stop lug 81 is provided to stop rotation of the handle 8 in one direction, and movable stop 82 in the other direction, pivoted so that it may be swung out of the way when it is desired to revolve the spacer out of engagement. It is provided with a counter weight 83 which returns it to position after the handle has passed. While not shown in the drawings these are provided for all the spacers.

Adjustment bolts 14 Fig. 8 allow adjustment of the head block either pivotally or longitudinally with respect to the bed 9.

Cords 36 passing over pulleys 12, mounted on the bed 9, and through openings 7 9 in'the carriage 6 propel the carriage forward a space each time the spacer handle 16 is thrown. j

a The bed of the machine 9 consists essentiallyof a frame 9 with longitudinal rails 33 and 34 built as webs and made to act as rails for 6 and 7 to track on, cross vertical webs 71 serve to stiffen the frame and at the same time support the spacers 8 in their bearings 70, openings 7 8 in the base of 9 allow the cords 36 to pass from theweights 13 to the pulleys 12, a bolt 15 set in the center of 9, as shown, allows 2-,to be pivoted by the bolts 14: and the bolts 14 between the web 71 and the lugs 50 of 2 allow ad ustment of 24 both longitudinally and atright angles to foundation with the bolts 73, care being taken to leave room for the weights 13 to work up and down freely. Place the spacers 8 8 8", in their bearings 70 on thewebs 71 and secure them in place in the disengaged position.

Place part 24 of the head block in approxiice 7 mateposition on the rails 33 and place the" bolts loosely in position. As there is plenty of play in the holes'in which the bolts 51 fit, 24 can be set asnear as desired to position by the adjusting bolts 14 because the slots 36 fit loosely while 35 fits quite neatly over the pivot 15. Nextset .the lower half of 25 in position in 24, with a "semicircular strip of metal, of the same gauge as the tube to be punched, set within 25.

This piece of metal is used the proper heightwhile setting the die in place. 7

Next assemble 19, on 39 position and fasten 41 in having keyed it to 10 by a pin 47 or other usual means of fastening, screw 20 and 21 on 10 spaced far apart and set the end of 10 through the support 23 and through the eye 22 restl in 2i5 and set as nearly as possible in its proper position. Set 7 free in its approximate position between 20 and 21 with 60 free, next place 6 in a position interinediate of 7' and 24 on the rails 33, with 67 removed, drop 5 in collar with the expander screw 63 free. Place 67 in position on 7 and fasten with the bolts 66. Place 6 at such a distance back that the shoulder on 5 is the desired distance from the face 46 of the last die and the lug 17 is in contact" with a tooth of 8 which has been swung to the position of engagement.

Maintaining this position set'7 so that it astens to theweb of33 by bolts 37 in holes 38 and draw 21 and 20 to position against lightly with 20 resting against the rear of 6. Next having assembled. 23 with the plungers and punches and the upper b alfof 25 on 24 and clamp down with bolts 76. It will probably be found that the punches do not fit against the die faces 46.

Bring the shearing faces 57 of the" punches and the faces 46. of the dies against each other by adjusting the bolts 14 and set in place by bolting down bolts 51. Should it'develop that the spacing between the punches and dies is unequal put liners 45 behind the dies until the necessary correction is made and the die spacing and punch spacing is equal.

To correct errors of revolution in'the die loosen 20 and 21 slightly and revolve 10 to fit the punches by meansof the lever 11 then everything being right draw down the set screw 60 to set 10,and draw 20 and 21 snug.

If the rear of 6 sets slightly'away trorn'20 place horseshoe shaped liners between 20 and the rear of 6.v Next attach cords to the weights 13 pass them. through the openings 78 and the openings? 9 of the carriage make a knot atthe rear of 6. Mount the levers 27 on the fulcrums 26, with the bolts 54, drop them inthe slots 57 and if the liners 30. aretheright height we are ready to start operating,

First remove in setting 1 at? position fitting 64 over the set and a machine bed mounting the preilminary liner under 1, and push in the tube shoving it alltheway inuntil-it'litsoverthe collar 6 l andgoes against the shoulder draw the bolt 63" tight. This will clampthe tube=inposition on the inside and prevent it frommovi'iig with respect to'6 or turningh I Depress the leversf'27' and punch one set at pun'chings, revolve-thellever 16jfrom' its position' against 81 to 82. The weights draw the I eairiage torward one space against the :next

tooth of thespa'cer, the levers are again depressed and the lever thrownback to 81; the carriage travel-s'iorward reaches theend of 'ts' travel, when. the bolt of the expander collar?) l another space'a d; the process 18 repe ted until? the. carnage.

a new tube is insertedand the processv reg peated. 1 7

- I amfaware that the idea "of a machinelto depressholes in a tube is not new, but believe, that the method of shearing and form etiing orifices isnew,"especia l'lythe idea o'r'a nonexpanding die, which clears by the withdrawal of the tube, thedie itself being: rigidly connectedby tin-extension snaft to an exterior heelbloclc which takes the reaction due to shearing;

lt claim- In a machine'torlinware ly depressing wallseta tube, rte iormimpact nozzles,.a sta ntially solid and normally stationary t erior recessed die, which clears in; the di 'r'ectionflofremovalfof the tube, mounte'di'oni 7 extension shait',an -extension shat-t react- Y s I u table in position but rigidly at ing against exterior heel blocir, a heel blockadj us tachedto the bed oi: the-machine, a head block surrounding the tube and. mounting punches which register with the interior res cessed' die, an expansion collar surrounding the extension shaft but interior .tothe tube, both head block and interior die. j 2 In a machine of the type described, an adjustably mounted heachblock of adjustable internal diameter,"punches mounted on the head-block, an ad ustable interior die regis tering withthe punches on the head-block and mounted on anextension shaft, an ex tension shaft attached to the interior die and reacting against an exterior heel block, an

interior stationary recessed its adjustable exterior heel block mounted on rails on a machine bed with means for clamping the heel block rigidly in place, a machine I bed mounting bothheel block and head block, v andmeans for adjusting the head block and means for adjusting the heel block on the;

rails of the-machine bed at varying distances 1 relative to each other.

3. In armachine of the class and for the 1 purpose described, a'hub, an interior inter V changeable recessed die head,

mounted on" v said hub, and mounting adjustable inter;-

chan eable depressed dies, dies with clear-' ance slots provided with slots in the direcr tion in which the tube is removed, a hub mounted on an adjustable extension shaft,

an adjustable extension shaft which reacts against an exterior heel block, a heel block,

m sneansfforremoving the sag from the extension shaft, and means for adjusting the position of-th'e heel block.

4. In Combination in a machine for operating on a tube, a diametrically split head block of variable diameter, surrounding the tube, and mounting multiple punches, an interiorrecessed .die head mounting multiple adjustable and changeable dies Which reg- .istenWitlr the punches, an extension shaft 1g capable. of adjustment vertically and longitudinally, an exterior heel block, a machine bed with rails, and means for adjusting the position of the heel block longitudinally and for :varying the distance between the heel :0 block and the head block and means for givingthehead blocka slight rotational adjustment in ahorizontal plane,an expansion collar surrounding the extension shaft and surrounded by the tube.

25 5. In amachine for punching and inwardl depressing Walls of a cylindrical tube to orm iinwardly depressed openings Without removing any part of the Walls, an inner immovable nonexpanding die head permitso ting the Withdrawal of the tube horizontally Witho-utinterfering with the die head, means for supporting the die head, and means for horizontally Withdrawing the formed part of the tube after punching. :135 In testimony whereof I hereby aflix my signature.

EUGENE DELERY.

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